干旱区生态环境知识资源中心(Arid): Climate and seed size of a dry forest species: influence on seed production, physiological quality, and tolerance to abiotic stresses

Arid

DOI	10.1590/2317-1545v45264166
	Climate and seed size of a dry forest species: influence on seed production, physiological quality, and tolerance to abiotic stresses
	Gomes, Samara Elizabeth Vieira; Gomes, Raquel Araujo; Dantas, Barbara Franca
通讯作者	Dantas, BF
来源期刊	JOURNAL OF SEED SCIENCE
ISSN	2317-1537
EISSN	2317-1545
出版年	2023
卷号	45
英文摘要	Seed production, quality and germination are likely to be affected by a drastic climate change in semi-arid areas predicted for the end of the century. We evaluated Anadenanthera colubrina var. cebil (Griseb.) Altschu (Fabaceae) seeds of different sizes, populations and harvest years for germination and tolerance to environmental stresses aiming to predict impacts of future climate. Seeds were accessed for germination temperature, salinity and osmotic limits and requirements. Germination of large and small seeds harvested in different populations was evaluated in optimum and stressful temperature, salinity and water deficit. A glasshouse pot assay tested weekly irrigation regimes and seedlings emergence and growth. Optimal temperature for seeds germination was 34.8 oC and limits were 5.6 oC and 50.9 oC. Large and small-sized seeds do not differ in germination, however small seeds are more efficient in stressful conditions. Seedlings can emerge and grow under small weekly irrigation for four months. The predicted increase in temperature will not impair germination, however, the time available for seedling establishment will decrease due to lacking rainfall. The increase in the amount of small-sized seeds produced in drought years is a strategy for coping with harsh environments, rather than a decrease in seed quality.
英文关键词	climate change environmental stress germination heat sum irrigation
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000983222300001
WOS关键词	GERMINATION ; TEMPERATURE ; HALOPHYTE ; SALINITY ; FITNESS ; LEGUMES
WOS类目	Agronomy
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/397537
推荐引用方式 GB/T 7714	Gomes, Samara Elizabeth Vieira,Gomes, Raquel Araujo,Dantas, Barbara Franca. Climate and seed size of a dry forest species: influence on seed production, physiological quality, and tolerance to abiotic stresses[J],2023,45.
APA	Gomes, Samara Elizabeth Vieira,Gomes, Raquel Araujo,&Dantas, Barbara Franca.(2023).Climate and seed size of a dry forest species: influence on seed production, physiological quality, and tolerance to abiotic stresses.JOURNAL OF SEED SCIENCE,45.
MLA	Gomes, Samara Elizabeth Vieira,et al."Climate and seed size of a dry forest species: influence on seed production, physiological quality, and tolerance to abiotic stresses".JOURNAL OF SEED SCIENCE 45(2023).